On 29 December 2017 at 12:28, Gianmaria Lari <gianmarial...@gmail.com>
wrote:
>
>
> On 29 December 2017 at 11:26, Timothy Lanfear <timo...@lanfear.me> wrote:
>
>> On 29/12/17 07:03, Gianmaria Lari wrote:
>>
>>> Sorry to bother but I'm unable to get out from this problem.
>>> This code generate two scores:
>>>
>>> \version "2.19.80"
>>>
>>> \score {
>>> \transpose c d {c' d' e'}
>>> \layout{}
>>> }
>>>
>>> \score {
>>> \transpose c e {c' d' e'}
>>> \layout{}
>>> }
>>>
>>> I tried to write a scheme function doing something similar:
>>>
>>> \version "2.19.80"
>>> myScore = #(define-scheme-function (music) (ly:music?) #{
>>>
>>> \score {
>>> \transpose c d $music
>>> \layout{}
>>> }
>>>
>>> \score {
>>> \transpose c e $music
>>> \layout{}
>>> }
>>>
>>> #})
>>>
>>> \myScore {c' d' e'}
>>>
>>> but when I try to compile I get this error
>>>
>>>
>>> error: syntax error, unexpected \score, expecting end of input
>>>
>>> \score {
>>>
>>>
>>> error: error in #{ ... #}
>>>
>>>
>>> Any suggestion?
>>> Thank you, Gianmaria
>>>
>>>
>> A function can only return a single item so you could wrap the two scores
>> in a book and then process the book.
>>
>> \version "2.19.80"
>>
>> myBook = #(define-scheme-function (music) (ly:music?) #{
>> \book {
>> \score { \transpose c d $music \layout{} }
>> \score { \transpose c e $music \layout{} }
>> }
>> #})
>>
>> mybook = #(myBook #{ { c' d' e' } #})
>> \mybook
>>
>>
>>
>>
>>
>> --
>> Timothy Lanfear, Bristol, UK.
>>
>>
>> _______________________________________________
>> lilypond-user mailing list
>> lilypond-user@gnu.org
>> https://lists.gnu.org/mailman/listinfo/lilypond-user
>>
>
> oh, great! It was some weeks I was stuck with this issue. I thought the
> scheme function would simply copy everything inside the #{ ... #} replacing
> the variable.
>
> Thanks a lot Timothy!
>
Is it possible to avoid the two lines
mybook = #(myBook #{ { c' d' e' } #})
\mybook
and write directly something like
.... myBook #{ { c' d' e' } #}
?
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